Bearing Behavior of Joints in Pultruded Composites
Bearing Behavior of Joints in Pultruded Composites
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DOI：
10.1177/0021998302036018535
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发表时间：
2002-09
影响因子：
2.9
通讯作者：
Youjiang Wang
中科院分区：
文献类型：
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作者：
Youjiang Wang
由于拉挤复合材料在结构应用中的使用越来越多，了解拉挤复合材料的承载性能对于有效的结构设计非常重要。本文报道了一个全面的实验和分析研究，以表征拉挤复合材料的几何形状和加载条件对接头强度和失效模式的影响。所研究的几何参数是试样宽度、端部距离和孔直径。试验研究包括抗压和抗拉承载试验。研究结果为此类材料的结构抗节点破坏设计提供了参考。拉伸破坏载荷和破坏模式的实验结果进行了比较，从平均应力分析和有限元法（FEM）的基础上的拉伸，剪切和（压缩）承载强度的预测。分析了孔尺寸对抗压承载强度的影响，预测结果与试验结果之间具有良好的相关性。用机织织物进一步增强拉挤复合材料的效果进行了评价。
Due to the increased use of pultruded composites for structural applications, understanding the bearing behavior of pultruded composites is important for effective structural designs. This paper reports on a comprehensive experimental and analytical study to characterize the influence of geometry and loading condition on the joint strength and failure mode in pultruded composites. The geometric parameters studied were specimen width, end distance, and hole diameter. The experimental study included compressive and tensile bearing tests. The results provide useful information for the structural design with such materials against joint failures. The experimental results for tensile failure load and failure mode are compared with predictions from the tensile, shear and (compressive) bearing strengths based on both average stress analysis and finite element method (FEM). The effect of hole size on the compressive bearing strength was analyzed and good correlation between predictions and test results was observed. The effect of further reinforcing the pultruded composites with a woven fabric was evaluated.